Only mark dump() function definitions 'used' in debug builds

This has the dual effect of (1) enabling more dead-stripping in release builds
and (2) ensuring that debug helper functions aren't stripp

Only mark dump() function definitions 'used' in debug builds

This has the dual effect of (1) enabling more dead-stripping in release builds
and (2) ensuring that debug helper functions aren't stripped away in debug
builds, as they're intended to be called from the debugger.

Note that the attribute is applied to definitions rather than declarations in
headers going forward because it's now conditional on NDEBUG:

/// \brief Mark debug helper function definitions like dump() that should not be
/// stripped from debug builds.

Requires corresponding macro added in LLVM r198456.

llvm-svn: 198489

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PR14581: Make SourceLocation::printToString work, or it will always return an empty string.

No test case, this is debugging code.

llvm-svn: 169980

Add a SourceLocation::printToString() that returns in a std::string what dump()
writes to stderr; for debugging purposes.

llvm-svn: 167629

Move FullSourceLoc::dump into the .cpp file, the used attribute made us emit this into every TU that includes SourceLocation.h.

llvm-svn: 151493

Clean up as many of the comments in Basic I can find to talk in terms of
'expansion' rather than 'instantiation' for macro source locations.

llvm-svn: 136058

Rename getInstantiationLineNumber to getExpansionLineNumber in both
SourceManager and FullSourceLoc.

llvm-svn: 135969

Rename getInstantiationColumnNumber to getExpansionColumnNumber in both
SourceManager and FullSourceLoc.

llvm-svn: 135965

Mechanically rename SourceManager::getInstantiationLoc and
FullSourceLoc::getInstantiationLoc to ...::getExpansionLoc. This is part
of the API and documentation update from 'instantiation' as the ter

Mechanically rename SourceManager::getInstantiationLoc and
FullSourceLoc::getInstantiationLoc to ...::getExpansionLoc. This is part
of the API and documentation update from 'instantiation' as the term for
macros to 'expansion'.

llvm-svn: 135914

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remove unneeded llvm:: namespace qualifiers on some core types now that LLVM.h imports
them into the clang namespace.

llvm-svn: 135852

Fix diagnostic pragmas.

Diagnostic pragmas are broken because we don't keep track of the diagnostic state changes and we only check the current/latest state.
Problems manifest if a diagnostic is emi

Fix diagnostic pragmas.

Diagnostic pragmas are broken because we don't keep track of the diagnostic state changes and we only check the current/latest state.
Problems manifest if a diagnostic is emitted for a source line that has different diagnostic state than the current state; this can affect
a lot of places, like C++ inline methods, template instantiations, the lexer, etc.

Fix the issue by having the Diagnostic object keep track of the source location of the pragmas so that it is able to know what is the diagnostic state at any given source location.

Fixes rdar://8365684.

llvm-svn: 121873

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Make sure to always check the result of
SourceManager::getPresumedLoc(), so that we don't try to make use of
an invalid presumed location. Doing so can cause crashes.

llvm-svn: 118885

Update get*LineNumber() and get*ColumnNumber() functions to pass the
Invalid bit through; there are no safety-critical callers of these
functions.

llvm-svn: 98674

Audit all callers of SourceManager::getCharacterData(); update some of
them to recover more gracefully on failure.

llvm-svn: 98672

Audit all getBuffer() callers (for both the FullSourceLoc and
SourceManager versions), updating those callers that need to recover
gracefully from failure.

llvm-svn: 98665

Switch another function to StringRef instead of char pointer pairs.

llvm-svn: 98631

Remove tabs, and whitespace cleanups.

llvm-svn: 81346

Remove the serialization code that predates precompiled
headers. Future approaches to (de-)serializing ASTs will be based on
the PCH infrastructure.

llvm-svn: 69828

Remove some now-unneeded calls to llvm::errs().flush().

llvm-svn: 66555

Add FullSourceLoc::getDecomposedLoc.

llvm-svn: 66522

Include information about compound statements when crashing in sema or the
parser. For example, we now print out:

0. t.c:5:10: in compound statement {}
1. t.c:3:12: in compound statement {}
2. clan

Include information about compound statements when crashing in sema or the
parser. For example, we now print out:

0. t.c:5:10: in compound statement {}
1. t.c:3:12: in compound statement {}
2. clang t.c -fsyntax-only

llvm-svn: 66108

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improve compatibility with GCC 4.4, patch by Michel Salim (PR3697)

llvm-svn: 65884

lower the interface to getLineNumber like we did for
getColumnNumber. This fixes a FIXME in
SourceManager::getPresumedLoc because we now just decompose
the sloc once.

llvm-svn: 63701

make SM::getColumnNumber take a predecomposed FileID/offset, which
makes it clear to clients that they have to pick an instantiation
or spelling location before calling it and allows optimization bas

make SM::getColumnNumber take a predecomposed FileID/offset, which
makes it clear to clients that they have to pick an instantiation
or spelling location before calling it and allows optimization based
on that.

llvm-svn: 63698

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Add method FullSourceLoc::getBufferData().

llvm-svn: 63229

Introduce a new PresumedLoc class to represent the concept of a location
as reported to the user and as manipulated by #line. This is what __FILE__,
__INCLUDE_LEVEL__, diagnostics and other things s

Introduce a new PresumedLoc class to represent the concept of a location
as reported to the user and as manipulated by #line. This is what __FILE__,
__INCLUDE_LEVEL__, diagnostics and other things should follow (but not
dependency generation!).

This patch also includes several cleanups along the way:

- SourceLocation now has a dump method, and several other places
that did similar things now use it.
- I cleaned up some code in AnalysisConsumer, but it should probably be
simplified further now that NamedDecl is better.
- TextDiagnosticPrinter is now simplified and cleaned up a bit.

This patch is a prerequisite for #line, but does not actually provide
any #line functionality.

llvm-svn: 63098

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